Additional Details ------------------------------ Product description: Detech EDS Gold Catcher Metal Detector with 6" and 10" Coils -At 28 kHz, the Detech Gold Catcher is super sensitive to the tiniest gold nuggets. It offers exceptional depth regardless of the terrain. This professional gold prospecting system ships complete with two top-performing Detech search coils. The first coil is a 10 x 10? DD coil designed for maximum depth. The second coil is a 6 x 6? DD coil designed to pinpoint the tiniest gold nuggets. A well thought gold prospecting metal detector designed for beginners to pros alike.Standard on the EDS Gold Catcher detector is a super light 3 piece Carbon Fiber Straight shaft, and a Genuine Leather Hand Grip. You will be amazed at the sensitivity and target recovery speed of the Gold Catcher. 2-year warranty with USA service center.Specifications:Frequency: 28kHzAudio Frequency: 550Hz Simple tone; 250Hz Low pitched tone; 1100Hz High pitched toneWeight: (inc. batteries) 3.53 lbs.Length: (Extended) 57" | (Collapsed) 35"Standard Search Coils: 6" DD Round, 10" DD RoundOptional Search Coil: 12.5" DD RoundHeadphones: Impedance 8 - 32 Ohms | Mono/Stereo Jack: 3.5mm [Optional: Wireless]Batteries: 6 AA, Ni-mH, 2200mAh [Optional: 6 AA 1.5 V, Alkaline]Ni-MH Battery Life: 20 - 30 hoursLow Battery Alert: Automatic LED and AudioGround Rejection: Auto/Manual Ground AdjustSearch Modes: Adjustable Discrimination, All Metals/Manual Ground Adjust EnableAuto Modes for recognizing the size of the coil and tuning for optimal operation with itTarget Identification: Dual Tone (Low/High Pitch)